cisa.dhs.gov

• Russian Intelligence Services Continue to Target Commercial Messaging Applications

  Russian Intelligence Services Continue to Target Commercial Messaging Applications CISA and the Federal Bureau of Investigation (FBI) issued an updated Public Service Announcement (PSA) warning of Russian Intelligence Services (RIS) cyber threat actors targeting commercial messa

• CISA Urges SharePoint Hardening After New Exploitations

  CISA Urges SharePoint Hardening After New Exploitations CISA is aware of active exploitation of vulnerabilities CVE-2026-32201 , CVE-2026-45659 , and CVE-2026-56164 , enabling cyber threat actors to gain unauthorized access to on-premises SharePoint Server instances. These vulne

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